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shelseamorrrow2411
23.02.2021 •
Chemistry
Question 3 (1 point)
What do ecosystem have that the other three levels of organization
do not?
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Ответ:
The empirical formula would be
.
Explanation:
To find the empirical formula, we will first have to convert the mass of each element to moles of each element:
(48.38 g C) (1 mol/ 12.10 g C) = 4.028 mol C
(8.12 g H) (1 mol/ 1.008 g H) = 8.056 mol H
(53.38 g O) (1 mol/ 16.00 g O) = 3.336 mol O
Next, divide the number of moles of each by the smallest number of moles to find the ratio or the moles of each element:
(3.336 mol O/ 3.336) = 1 mol O
(4.028 mol C/ 3.336) = 1.2 mol C
(8.056 mol H/ 3.336) = 2.4 mol H
Finally, let's look at the mole ratio. We have to multiply all the mole ratios by a constant to get then all to be whole numbers. In this case, 5 would be the multiplication factor needed.
(1 mol O) (5) = 5 mol O
(1.2 mol C) (5) = 6 mol C
(2.4 mol H) (5) = 12 mol H
Now, the ratios are whole numbers, and we can write the empirical formula as thus: